Display device

Patent metadata

Field	Value
Publication number	US-2016190503-A1
Application number	US-201514832898-A
Country	US
Kind code	A1
Filing date	Aug 21, 2015
Priority date	Dec 30, 2014
Publication date	Jun 30, 2016
Grant date	—

Abstract

A display device includes: a substrate; a display unit on the substrate; a first inorganic layer on the display unit; a first organic layer on an upper portion of the first inorganic layer; a first dam at an edge of the first organic layer; a second dam spaced from the first dam and at an outer area of the first dam with respect to the display unit; and a stress relieving layer between the first dam and the second dam.

First claim

What is claimed is:

1 . A display device comprising:
a substrate; a display unit on the substrate; a first Inorganic layer on the display unit; a first organic layer on an upper surface of the first Inorganic layer; a first dam at an edge of the first organic layer; a second dam spaced from the first dam and at an outer region of the first dam with respect to the display unit; and a stress relieving layer between the first dam and the second dam.

2 . The display device of claim 1 , wherein the stress relieving layer comprises an organic material.

3 . The display device of claim 1 , wherein the stress relieving layer comprises the same material as that of the first organic layer.

4 . The display device of claim 1 , wherein the stress relieving layer is formed using an inkjet process.

5 . The display device of claim 1 , wherein the stress relieving layer is located above the first dam and the second dam and has a height substantially equal to a height of the first organic layer.

6 . The display device of claim 1 , further comprising:
a second Inorganic layer on an upper surface of the first organic layer.

7 . The display device of claim 1 , further comprising:
a protection film below the substrate.

8 . The display device of claim 7 , wherein the protection film is spaced from a display area and is inside a display area of the display device.

9 . The display device of claim 7 , wherein an upper edge of the protection film is rounded.

10 . The display device of claim 7 , wherein the substrate has a notch, and
wherein the notch is spaced from the edge of the protection film.

11 . The display device of claim 10 , wherein the notch has a triangular shape.

12 . The display device of claim 10 , wherein the notch has a semicircular shape.

13 . The display device of claim 10 , wherein the notch has a rectangular shape.

14 . The display device of claim 1 , wherein the stress relieving layer is between an ELVSS and the second dam.

15 . A display device comprising:
a substrate; a display unit on the substrate; a first Inorganic layer on the display unit; a first organic layer on an upper surface of the first Inorganic layer; a first dam at an edge of the first organic layer; and a stress relieving layer on the substrate at an outer area of the first dam with respect to the display unit.

16 . The display device of claim 15 , further comprising:
a second dam spaced from the first dam and at an edge of the stress relieving layer.

17 . The display device of claim 15 , further comprising:
a protection film below the substrate.

18 . The display device of claim 17 , wherein the protection film has a rounded upper edge.

19 . The display device of claim 17 , wherein the substrate has a notch at a lower surface, and
wherein the notch is spaced from the edge of the protection film.

20 . A display device comprising:
a substrate; a display unit on the substrate; a first inorganic layer on the display unit; a first organic layer on an upper surface of the first Inorganic layer; a first dam at an edge of the first organic layer; and a protection film below the substrate, wherein the protection film has a rounded upper edge.

21 . The display device of claim 20 , further comprising:
a second dam spaced from the first dam and at an outer region of the first dam with respect to the display unit.

22 . The display device of claim 20 , further comprising:
a stress relieving layer between an ELVSS and a second dam at an outer region of the ELVSS with respect to the display unit.

23 . The display device of claim 22 , wherein the stress relieving layer comprises an organic material.

24 . The display device of claim 22 , wherein the stress relieving layer comprises the same material as that of the first organic layer.

25 . The display device of claim 22 , wherein the stress relieving layer is formed using an inkjet process.

26 . The display device of claim 20 , wherein the substrate has a notch in a lower surface of the substrate, and
wherein the notch is spaced from the edge of the protection film.

Assignees

• Samsung Display Co Ltd

Inventors

• Chang Seungwook
• Kim Mugyeom
• Park Heechang
• Lee Younghee

Classifications

• Y02E10/549

  Organic PV cells · CPC title

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K59/8731 Primary

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title

• H10K50/844

  Encapsulations · CPC title

• H10K77/10 Primary

  Substrates, e.g. flexible substrates · CPC title